Same as Fig. 9, but versus redshift. The red curve is a schematic line summarizing the cosmic star formation history, from the compilation by Hopkins & Beacom (2006), complemented with the GRB data by Kistler et al. (2009) and the optical data from Bouwens et al. (2008). The red curve is logarithmic and only indicative of relative variations of the star formation rate per cubic Mpc as a function of redshift, and can be translated vertically.